Description
Used Northern Lights 25-12057 bronze raw water / sea water cooling pump for Northern Lights marine generators including M753, M773L, M843N and related 8–20 kW gensets. Bronze body with diamond 4-bolt mounting flange, NPT side port, and square drive shaft end. Sold as the pump shown; recommend fresh impeller, gasket, and seal kit before service. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.